Have you heard of the word antimicrobial?
Similar words have "sterilization" and "sterilization".
It may have been heard if it is pasteurized.
Sterilization is to kill the bacteria, disinfection is not perfect, but to reduce the number a certain number, and antibacterial to suppress the occurrence and increase of bacteria.
There are many things that are "antibacterial" in your surroundings.
For example, train railings and escalator handrails. These may be antibacterial processed.
If antimicrobial processing is done, even if bacteria are lost, it will be possible to prevent further increase in the place where fungus sticks.
Well then, it would be nice to have more and more antibiotic products around us.
There is also a problem in such "antibacterial". It seems that bacteria may become stronger by antibacterial, so as not to lose the power of antibacterial. By antibacterializing, it is not only good things.